396071057 has 2 divisors, whose sum is σ = 396071058. Its totient is φ = 396071056.

The previous prime is 396071023. The next prime is 396071069. The reversal of 396071057 is 750170693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198499921 + 197571136 = 14089^2 + 14056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396071057 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396071057.

It is not a weakly prime, because it can be changed into another prime (396071087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198035528 + 198035529.

It is an arithmetic number, because the mean of its divisors is an integer number (198035529).

Almost surely, 2^396071057 is an apocalyptic number.

It is an amenable number.

396071057 is a deficient number, since it is larger than the sum of its proper divisors (1).

396071057 is an equidigital number, since it uses as much as digits as its factorization.

396071057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 396071057 is about 19901.5340363501. The cubic root of 396071057 is about 734.3859662572.

The spelling of 396071057 in words is "three hundred ninety-six million, seventy-one thousand, fifty-seven".